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Threshold percentage of risk reinsured on insurance products per entity policy.

No definition available.

Name:	esnt_ReinsuranceRetentionPolicyReinsuredRiskPercentageThreshold
Namespace Prefix:	esnt_
Data Type:	dtr-types1:percentItemType
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 808
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479402/808-10-50-1

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The number of states the entity operates in as of the balance sheet date.

No definition available.

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Percentage of risk undertaken originally by insurer ceded to reinsurer.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 944
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479838/944-20-50-3

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Namespace Prefix:
Data Type:	na
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